Math 104 – Linear Algebra & Applications, Section 02

Fall 2011

Instructor:
Mark Iwen
Time and Place:
MWF 3:05PM - 3:55PM in Soc/Psych 129
E-mail:
markiwen@math.duke.edu
Office:
Physics 015
Office Phone:
(919) 660-2871
Office Hours:
Monday from 11:30 AM until 12:30 PM, Tuesday from 10 AM until 11 AM, and Wednesday from 9 AM until 10 AM.

Resources

Course Information:
Syllabus
The Book:
Linear Algebra: A Geometric Approach, Second Edition, by T. Shifrin and M. Adams,
W.H. Freeman and Company, New York, 2011. ISBN-10: 1-4292-1521-6
Selected Solutions:
Homework #1, some Section 1.1, 1.2, and 1.3 problem solutions
Homework #2, some Section 1.4 and 1.5 problem solutions
Homework #3, some Section 1.6 and 2.1 problem solutions
Homework #4, some Section 2.2, 2.3, and 2.4 problem solutions
Homework #5, some Section 2.5, 3.1, and 3.2 problem solutions
Homework #6, some Section 3.3, 3.4, and 3.6 problem solutions
Homework #7, some Section 4.1 and 4.2 problem solutions
Homework #8, some Section 4.3 and 4.4 problem solutions
Homework #9, some Section 5.1, 5.2, and 5.3 problem solutions
Homework #10, some Section 6.1, 6.2, and 6.3 problem solutions
Homework #11, some Section 6.4, 7.1, and 7.3 problem solutions
Some other example solutions from various sections are here and here.

Homework Assignments and Material Covered

The assignment for each covered section is listed in the table below. I recommend that you do the homework shortly after the section
is completed in class. Homeworks are due at the beginning of class on most Wednesdays. Late Homework will never be accepted.

Class Date
Sections Covered
Homework Assigned
Homework Due
Mon, Aug 29 1.1, Pages 1--15 Pages 15 --18: 6(a,c,g), 7, 8, 10, 11, 21, 22, 23, 25, 29
Read Syllabus
Wed, Sep 7
Wed, Aug 31 1.2, Pages 18--25 Pages 25--28: 1(b,d,g), 2(b,d,g), 4, 9, 11, 13, 16, 18 Wed, Sep 7
Fri, Sep 2 1.3, Pages 28--34 Pages 34--35: 1(a,c,f), 3(a,d,e), 5, 8, 11, 12 Wed, Sep 7
Mon, Sep 5 1.4, Pages 36--49 Pages 49--53: 1, 3(a--f), 4(d,f), 10, 11, 13 Wed, Sep 14
Wed, Sep 7 1.4, Pages 36--49 No new homework! Wed, Sep 14
Fri, Sep 9 1.5, Pages 53--61 Pages 61--64: 1, 2(a,b), 3(a,c), 4a, 5b, 6, 10, 12, 13, 14 Wed, Sep 14
Mon, Sep 12 1.5, Pages 53--61 No new homework! Wed, Sep 14
Wed, Sep 14 1.6, Pages 64--75 Pages 75--77: 3, 5, 7, 9, 11, 12a, 13b Wed, Sep 21
Fri, Sep 16 2.1, Pages 81--89 Pages 89--91: 1(a,c,f), 2, 5, 6, 7, 8, 9, 12(a,b,d), 14, 15 Wed, Sep 21
Mon, Sep 19 2.2, Pages 91--100 Pages 100--102: 5, 7, 8 Wed, Sep 28
Wed, Sep 21 Chapter 1
2.1, Pages 81--89
TEST 1 Wed, Sep 21
Fri, Sep 23 2.3, Pages 102--108 Pages 108--110: 1(b,d,f), 2(a,c,d), 4, 8, 11, 12, 16 Wed, Sep 28
Mon, Sep 26 2.4, Pages 110--117 Pages 118--119: 3(a,c,d), 7, 14 Wed, Sept 28
Wed, Sep 28 2.5, Pages 119--121 Pages 121--124: 1(a,f,j), 4, 8, 9, 12, 15, 19(a,b,c), 22, 23 Wed, Oct 5
Fri, Sep 30 3.1, Pages 127--134 Pages 134--135: 1, 2(a,c,d), 6, 9(b,c), 10, 12, 13, 14, 17 Wed, Oct 5
Mon, Oct 3 3.2, Pages 136--142 Pages 142--143: 1, 2(a,b), 5, 10, 11 Wed, Oct 5
Wed, Oct 5 3.3, Pages 143--154 Pages 154--156: 1, 2, 5(a,b), 8, 10, 11, 14, 15, 19, 21, 22 Wed, Oct 19
Fri, Oct 7 3.4, Pages 157--167 Pages 167--170: 2, 3(a,b,d), 4, 7, 17, 20, 24 Wed, Oct 19
FALL BREAK FALL BREAK FALL BREAK FALL BREAK
Wed, Oct 12 3.6, Pages 176--185 Pages 185--188: 1, 2(a,c,d), 3(a,c,f), 4, 6(a,b), 9, 12a, 13,
14(b,c), 15(a,b)
Wed, Oct 19
Fri, Oct 14 3.6, Pages 176--185 No new homework! Wed, Oct 19
Mon, Oct 17 4.1, Pages 191--198 Pages 198--200: 1(a,b), 3, 6, 7, 9, 11, 13, 15 Wed, Oct 26
Wed, Oct 19 Chapters 2 and 3 TEST 2 Wed, Oct 19
Fri, Oct 21 4.2, Pages 200--206 Pages 206--208: 2(b,c), 3, 6, 7(a,b), 8a, 9a, 11, 12(a,b) Wed, Oct 26
Mon, Oct 24 4.2, Pages 200--206 No new homework! Wed, Oct 26
Wed, Oct 26 4.3, Pages 208--220 Pages 220--224: 3, 7, 9, 12, 16, 18, 19, 20, 21, 27 Wed, Nov 2
Fri, Oct 28 4.4, Pages 224--234 Pages 234--237: 2, 5, 7, 8, 11, 21 Wed, Nov 2
Mon, Oct 31 5.1, Pages 239--243 Pages 243--245: 1(a,b,c), 2, 4, 5, 7, 9a, 10, 11 Wed, Nov 9
Wed, Nov 2 5.2, Pages 245--252 Pages 252--255: 1a, 3, 4, 5(a,c,f), 7, 8, 10 Wed, Nov 9
Fri, Nov 4 5.2, Pages 245--252 No new homework! Wed, Nov 9
Mon, Nov 7 5.3, Pages 255--258 Pages 258--260: 3, 5, 7 Wed, Nov 16
Wed, Nov 9 Complex Matrices 1.)Verify the inverse matrix calculated in class is correct.
2.)Consider vectors with complex entries, Cn, with complex
scalar multiplication. Verify that the inner product defined
in class is indeed an inner product.
Wed, Nov 16
Fri, Nov 11 6.1, Pages 261--268 Pages 268--270: 1(a,b,d,g,h,i,p), 2, 3, 4, 6, 7(a,d), 9, 10,
13(a,b)
Wed, Nov 30
Mon, Nov 14 6.2, Pages 270--274 Pages 274--277: 1(a,b,d,g,h,i,p), 2(c,e,f), 4, 7, 8, 11, 12, 13,
15, 17a, 19(a,b)
Wed, Nov 30
Wed, Nov 16 Chapters 4 and 5 TEST 3 Wed, Nov 16
Fri, Nov 18 6.3, Pages 277--284 Pages 284-285: 1, 2, 3, 8, 11, 12a, 13 Wed, Nov 30
Mon, Nov 21 6.4, Pages 286--294 Pages 294--296: 1(a,d,e,g), 3, 5, 7, 12(a,b,c,d), 14 Fri, Dec 9
THANKSGIVING THANKSGIVING THANKSGIVING THANKSGIVING
Mon, Nov 28 7.1, Pages 299--312 Pages 312--314: 1, 2(a,b,c,e), 4, 5, 7(a,b,c), 8(a,c,e), 14, 16 Fri, Dec 9
Wed, Nov 30 7.1, Pages 299--312 No new homework! Fri, Dec 9
Fri, Dec 2 7.3, Pages 331--344 Pages 344--347: 1(a,c,d), 2(a,b,d), 4, 5(a,b), 6,
8(only for n = 3), 9(a,b), 10, 13, 14
Fri, Dec 9
Mon, Dec 5 7.3, Pages 331--344 No new homework! Fri, Dec 9
Wed, Dec 7 Not in Book: The
Singular Value
Decomposition
No new homework! Fri, Dec 9
Fri, Dec 9 REVIEW Study "Questions of the Day'', review tests,
and look over HW solutions.
FINAL EXAM
Saturday, December 17
2:00 PM -- 5:00 PM